246871-69-2Relevant articles and documents
Synthesis of β-formylsteroidal enamides and their conversion into geminal dichlorides
Boruah, Romesh C.,Ahmed, Shahadat,Sharma, Utpal,Sandhu, Jagir S.
, p. 274 - 282 (2007/10/03)
A novel class of β-formylsteroidal enamides has been prepare a from 16- dehydropregnenolone-20-oxime. Reaction of these enamides with Vilsmeier reagent affords steroidal geminal dichlorides in good yields. Reaction of the corresponding C-16 formylidenemalononitriie derivative with chloromethyleneiminium salt, however, leads to a ring-D fused pyndosteroid.
